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Alex Krovda
Joined: Mon Mar 23, 2015 1:11 am Posts: 9 Location: London UK, Hanwell
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can you ID this Cyathea?
One of my Cyathea expected to be either C.browni or C.cooperi. At least I believed I ID'ed and collected spores from the species. It looks unlike both. Here the pictures:
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Thu Apr 20, 2017 2:18 am |
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Eduard O
Joined: Sun Sep 02, 2012 7:46 pm Posts: 1196 Location: Maastricht Netherlands
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Re: can you ID this Cyathea?
Hi Alex, resembles a brownii hybrid [ brownii / cooperi] , I already Saw many copies that looked like this here and seen by other growers! Difficult to determine correctly Eduard.
_________________ 2021 min. -09.1ºC --- max. 33.2ºC 2022 min. -09.0ºC --- max. 39.7ºC
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Thu Apr 20, 2017 10:19 am |
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Bart
Joined: Wed Jun 23, 2010 12:59 pm Posts: 141 Location: The Netherlands
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Re: can you ID this Cyathea?
Hybrids between tree ferns species seem to be very rare and few have been discribed. I therefore don't think there is a good reason to think this might be a hybrid. Cooperi is so variable.
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Thu Apr 20, 2017 10:40 am |
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Eduard O
Joined: Sun Sep 02, 2012 7:46 pm Posts: 1196 Location: Maastricht Netherlands
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Re: can you ID this Cyathea?
I have heard that research has been done, the brownii's that I raised here [brownii var.] has brownii and cooperi genes .
Eduard.
_________________ 2021 min. -09.1ºC --- max. 33.2ºC 2022 min. -09.0ºC --- max. 39.7ºC
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Thu Apr 20, 2017 11:18 am |
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Stan
Joined: Wed Oct 31, 2007 5:52 pm Posts: 10687 Location: Hayward- S.F. Bay area Ca.
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Re: can you ID this Cyathea?
I would go with C.brownii. Funny that here in the states its never sold at nurseries. You have to internet order it. C.cooperi is sold everywhere.
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Thu Apr 20, 2017 10:47 pm |
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Alex Krovda
Joined: Mon Mar 23, 2015 1:11 am Posts: 9 Location: London UK, Hanwell
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Re: can you ID this Cyathea?
The most remarkable property of the "hybrid" is the extremely fast maturation. The "spore-to-spore" time was just 25month! Two other spore samples, I presume C.coopery and C.browni, were seeded simultaneously. C.coopery become fertile a year after the "hybrid", whereas C.browni 7 years on still has no spores. The "hybrid" spores are viable and fast to produce protallys. I would expect some fertility issues from a hybid. C.marcescens is well known example.
Still Eduard's hypothesis has a good chance as I had C.coopery and C.browni specimens sids-by-side when early protallys were replanted in one "sporelining" box. Here: three bottom rows are Cyathea leichardtiana, Cyathea brownii and Cyathea cooperi.
On the other hand the plants are "C.cooperi", "C.browni" or "C.mistery" only in my opinion. I hope you will agree with me on the first two at least.
Early days when I collected spores in RBG Melbourne I labelled them "cooperi" or "browni" almost randomly. As result I used spores from these three plants (below) and later randomly peaked few sporelins from every germline. So they all are of nameless descent.
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Fri Apr 21, 2017 3:04 am |
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